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Melhoria dos processos de projeto e fabrico aditivo numa empresa industrial
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Orientador(es)
Resumo(s)
O progressivo crescimento da competitividade empresarial no setor de eletrodomésticos, o
aumento dos custos da matéria-prima, a evolução tecnológica global e as exigências dos cli-
entes levaram as empresas à necessidade de implementar metodologias de melhoria dos pro-
cessos internos com o objetivo de aumentar a sua produtividade, a qualidade dos seus produ-
tos e a sua velocidade de resposta às exigências dos clientes e do mercado. As empresas apre-
sentam uma necessidade premente de melhorar os processos internos, visando a eficiência, a
redução de custos e a eliminação dos desperdícios.
A empresa de eletrodomésticos Eugster & Frismag, assim como outras empresas do ramo,
procuram implementar novos processos tecnológicos inovadores, que visam não só a área de
fabrico como também a metodologia de projeto. Nos últimos anos a empresa está a imple-
mentar cada vez mais a filosofia
Lean em todas as suas áreas funcionais. Neste âmbito, o obje-
tivo do estudo desenvolvido, visou a implementação da tecnologia de impressão 3D no ambi-
ente
Lean da empresa.
No estudo foram utilizadas algumas ferramentas de apoio (relatórios 3C's,
brainstorming e
observação direta) e ferramentas analíticas do
Lean (
gemba walk, A3, 5S e trabalho padroni-
zado).
Foram desenvolvidas algumas propostas de melhoria, entre elas, uma ferramenta auxiliar para
a montagem dos motores, realocação da área de impressão 3D e melhoria do seu
layout e a
criação de um procedimento de impressão 3D. Durante o desenvolvimento do procedimento
surgiram novas oportunidades de melhoria do processo de fabrico dos componentes, como
por exemplo: melhoria da orientação da peça, melhoria da escolha da resina e redução do
tempo de limpeza.
A implementação das melhorias propostas resultou numa redução do tempo de espera, dosstocks, dos movimentos e dos defeitos (dos 30% passou para 10%). Também foi melhorada
uma ferramenta auxiliar à montagem de máquinas de café que permitiu poupar cerca de 900€.
O aspeto das peças impressas ficou mais apelativo, assim como a sua resistência mecânica
melhorou.
The progressive growth of the business competitiveness in the household appliances sector, the increase of the raw material's cost levels, the global technological evolution and the strict requirements of customers have necessarily led companies to put into practice methodologies that improve internal processes and, consequently, the search for a methodology which in- creases its productivity, that improves the quality of its products and that boosts its speed of response to the demands of customers and of the market. Companies have a pressing need to improve internal processes, aiming at efficiency, which includes the reduction of costs and waste. The household appliance company Eugster & Frismag, as well as other companies in this same business area, seek to implement the Lean philosophy and some innovative techniques, both in the design phase as in the production process. In this context, the objective of this study aimed, precisely, at the implementation of the Lean philosophy combined with the 3D printing technology in the mentioned company. This study relied on the use of some Lean analytical tools (gemba walk, A3, 5S and standardized work) and on some other support tools (3C's reports, brainstorming and direct observation). Some betterment suggestions were developed, such as, an auxiliary tool for the assembly of the engines, the relocation of the 3D printing area, as well as the enhancement of its layout and the creation of a 3D printing procedure. During the development of the procedure, there was still room for improvement in the manu- facturing process of the components, specifically, the improvement in the orientation of the part, along with the upturns in the choice of resin and a reduction in the cleaning time, among others. The implementation of the suggested improvements resulted in a reduction in the waiting time, stocks, the movements and the defective products (from 30% to 10%). There were also the improvements achieved in an auxiliary tool to assembly coffee machines, which saved about 900 €. Finally, it's also important to mention a strong enhancement what the appearance of the printed parts, as well as, their mechanical strength is concerned.
The progressive growth of the business competitiveness in the household appliances sector, the increase of the raw material's cost levels, the global technological evolution and the strict requirements of customers have necessarily led companies to put into practice methodologies that improve internal processes and, consequently, the search for a methodology which in- creases its productivity, that improves the quality of its products and that boosts its speed of response to the demands of customers and of the market. Companies have a pressing need to improve internal processes, aiming at efficiency, which includes the reduction of costs and waste. The household appliance company Eugster & Frismag, as well as other companies in this same business area, seek to implement the Lean philosophy and some innovative techniques, both in the design phase as in the production process. In this context, the objective of this study aimed, precisely, at the implementation of the Lean philosophy combined with the 3D printing technology in the mentioned company. This study relied on the use of some Lean analytical tools (gemba walk, A3, 5S and standardized work) and on some other support tools (3C's reports, brainstorming and direct observation). Some betterment suggestions were developed, such as, an auxiliary tool for the assembly of the engines, the relocation of the 3D printing area, as well as the enhancement of its layout and the creation of a 3D printing procedure. During the development of the procedure, there was still room for improvement in the manu- facturing process of the components, specifically, the improvement in the orientation of the part, along with the upturns in the choice of resin and a reduction in the cleaning time, among others. The implementation of the suggested improvements resulted in a reduction in the waiting time, stocks, the movements and the defective products (from 30% to 10%). There were also the improvements achieved in an auxiliary tool to assembly coffee machines, which saved about 900 €. Finally, it's also important to mention a strong enhancement what the appearance of the printed parts, as well as, their mechanical strength is concerned.
Descrição
Palavras-chave
Lean Manufatura Aditiva Impressão 3D Trabalho Padronizado Kaizen 5S